Can you find the next number in the below sequence
3 , 7 , 10 , 11 , 12 , 17 ?

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

What Does this text mean:

important=important

John is selling fruits.
He sells grapes at $30, Dates $25, and a Wolfberry $45.
At what price does he sell fig?

PS: Logical Thinking

Can you find out the missing number in the grid?

At my favorite fruit stand,
an orange costs 18,
a pineapple costs 27,
and a grape costs 15.
Using the same logic, can you tell how much a mango costs?

What word is identified by the below rebus?

Your Your Your Your Your
Your Your Your Your Your

In the picture, you can see a chess board. On the top left position, the K marks a knight. Now, can you move the knight in a manner that after 63 moves, the knight has been placed at all the squares exactly once excluding the starting square?

Move three sticks of the spiral below to form a square.

Which is faster, Heat or Cold ? Explain.